Which is the only nonmetal to appear on the left side of the periodic table?
A) hydrogen
B) helium
C) carbon
D) oxygen

Question

Quizplus · Accepted Answer

Hydrogen is the only nonmetal that appears on the left side of the periodic table, in group 1. This is because it has only one electron in its outermost energy level, similar to the alkali metals. However, it also has some unique properties that make it behave differently from other group 1 elements, such as the ability to form covalent bonds.

Which Is the Only Nonmetal to Appear on the Left